On the dark rim artifact in dynamic contrast-enhanced MRI myocardial perfusion studies
On the dark rim artifact in dynamic contrast-enhanced MRI myocardial perfusion studies
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DOI：
10.1002/mrm.20666
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发表时间：
2005-11-01
影响因子：
3.3
通讯作者：
Sinusas, AJ
中科院分区：
文献类型：
--
作者：
Di Bella, EVR;Parker, DL;Sinusas, AJ
在一些动态增强的MR灌注研究中，发现了沿左室心内膜下边缘和心肌部分的暗带或边缘。这件文物被认为是Gd丸、运动或分辨率，或它们的组合所产生的敏感性效应的线索。在这里，用腔内充满了Gd的静止的体外心脏来表明，黑暗边缘的伪影可以单独与分辨率效果一致。
A dark band or rim along parts of the subendocardial border of the left ventricle (LV) and the myocardium has been noticed in some dynamic contrast-enhanced MR perfusion studies. The artifact is thought to be clue to susceptibility effects from the gadolinium bolus, motion, or resolution, or a combination of these. Here motionless ex vivo hearts in which the cavity was filled with gadolinium are used to show that dark rim artifacts can be consistent with resolution effects alone.